frontier.vn - robtex.com
frontier.vn
vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn | ||||||
| NS | b.dns-servers.vn | ||||||
| NS | c.dns-servers.vn | ||||||
| NS | d.dns-servers.vn | ||||||
| NS | e.dns-servers.vn | ||||||
| NS | f.dns-servers.vn | ||||||
| NS | g.dns-servers.vn | ||||||
| NS | h.dns-servers.vn | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2030725684 | ||||||
Subdomains
Same first word
Similar names
DNS History
9 records (6 active, 3 former)
○NSmark.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs
○ 2026-05-01 09:02:24
○ 2026-05-03 21:43:38
●NSns1-03.azure-dns.com2026-05-01 → 2026-05-03 · 3 obs
● 2026-05-01 09:02:24
● 2026-05-03 21:43:38
●NSns2-03.azure-dns.net2026-05-01 → 2026-05-03 · 3 obs
● 2026-05-01 09:02:24
● 2026-05-03 21:43:38
●NSns3-03.azure-dns.org2026-05-01 → 2026-05-03 · 3 obs
● 2026-05-01 09:02:24
● 2026-05-03 21:43:38
●NSns4-03.azure-dns.info2026-05-01 → 2026-05-03 · 3 obs
● 2026-05-01 09:02:24
● 2026-05-03 21:43:38
○NSsara.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs
○ 2026-05-01 09:02:24
○ 2026-05-03 21:43:38
●MXmail.frontier.vn2017-03-16 → 2026-05-03 · 2 obs
● 2026-05-03 21:43:38
●A113.161.66.942026-05-01 → 2026-05-03 · 3 obs
● 2026-05-01 09:02:24
● 2026-05-03 21:43:38
○A203.162.127.2192017-03-16 → 2017-03-16 · 3 obs
○ 2026-05-01 09:02:24
○ 2026-05-03 21:43:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | f.dns-servers.vn, g.dns-servers.vn, h.dns-servers.vn, a.dns-servers.vn... | - |
| frontier.vn | ns2-03.azure-dns.net, ns3-03.azure-dns.org, ns1-03.azure-dns.com | - |
✅ Authoritative Response
Server:204.14.183.3
NS records: ns2-03.azure-dns.net, ns3-03.azure-dns.org, ns1-03.azure-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for frontier.vn (unsigned zone)
⏱️ Timing
Total: 955ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 113.161.66.94 |
| NS | 4 | ns1-03.azure-dns.com, ns2-03.azure-dns.net... |
| MX | 1 | mail.frontier.vn (pri: 10) |
| TXT | 2 | google-site-verification=WTae-Gc01KGyInZ, v=spf1 a ip4:113.161.66.94 ip4:20.205.21 |
| SOA | 1 | ns1-03.azure-dns.com azuredns-hostmaster |
Analysis
Hierarchy
frontier.vn is a parent of mail.frontier.vn and www.frontier.vn.
IP Addresses
frontier.vn resolves to one IP number: 113.161.66.94.
other host names including what.website.hostmaster.itexpert.edu.vn, b.itexpert.edu.vn, ccc.dddd.itexpert.edu.vn, itexpert.edu.vn and www.frontier.vn share IP numbers with frontier.vn.
Name Servers
frontier.vn is delegated to four name servers: ns1-03.azure-dns.com, ns4-03.azure-dns.info, ns2-03.azure-dns.net and ns3-03.azure-dns.org.
frontier.vn at least partially shares name servers with other domains, for instance mielikainen.fi, ags.org, pumatelecommunications.com, hosteddelivery.tomtom.com and xboxs.com.
Host names with two IP numbers:
ns1-03.azure-dns.com points to 2603:1061:0:700::3 and 13.107.236.3; ns4-03.azure-dns.info points to 2620:1ec:bda:700::3 and 208.84.5.3; ns2-03.azure-dns.net points to 2620:1ec:8ec:700::3 and 150.171.21.3; ns3-03.azure-dns.org points to 2a01:111:4000:700::3 and 204.14.183.3.
Mail Servers
frontier.vn is handled by a single mail server, mail.frontier.vn.
mail.frontier.vn resolves to IP 113.161.66.94.